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FREE SHIPPING ON ORDERS OVER 100.00$ USE CODE: FREESHIP100

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Welcome to First Stop Marine, Your one stop shop for all of your boating needs and more!

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Collection: Marine Plumbing & Ventilation - Thru-Hull Fittings

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Brand_Attwood Marine (11 products)
Brand_GROCO (53 products)
Brand_Perko (33 products)
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Marine Plumbing & Ventilation (97 products)
Marine Plumbing & Ventilation | Thru-Hull Fittings (97 products)
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97 products

Perko 3-1/2" x 2-1/2" Scoop Strainer Bronze MADE IN THE USA [0066DP1PLB]

Sale

Perko 3-1/2" x 2-1/2" Scoop Strainer Bronze MADE IN THE USA [0066DP1PLB]

Vendor:
Perko

Regular price $19.99 USD

Regular price ~~$35.86 USD~~ Sale price $19.99 USD
Unit price per

Sale
Attwood Stainless Steel Scupper Valve Barbed - 1-1/2" Hose Size [66553-3]

Sale

Attwood Stainless Steel Scupper Valve Barbed - 1-1/2" Hose Size [66553-3]

Vendor:
Attwood Marine

Regular price $80.99 USD

Regular price ~~$99.99 USD~~ Sale price $80.99 USD
Unit price per

Sale
GROCO 1-1/4" 90 Degree Hose Thru-Hull Fitting [HTHC-1250-S]

Sale

GROCO 1-1/4" 90 Degree Hose Thru-Hull Fitting [HTHC-1250-S]

Vendor:
GROCO

Regular price $79.99 USD

Regular price ~~$106.00 USD~~ Sale price $79.99 USD
Unit price per

Sale
GROCO 1/2" NPS NPT Combo Stainless Steel Thru-Hull Fitting w/Nut [TH-500-WS]

Sale

GROCO 1/2" NPS NPT Combo Stainless Steel Thru-Hull Fitting w/Nut [TH-500-WS]

Vendor:
GROCO

Regular price $16.99 USD

Regular price ~~$22.00 USD~~ Sale price $16.99 USD
Unit price per

Sale
GROCO 1-1/4" Bronze Extra Long Thru-Hull Fitting w/Nut [THXL-1250-W]

Sale

GROCO 1-1/4" Bronze Extra Long Thru-Hull Fitting w/Nut [THXL-1250-W]

Vendor:
GROCO

Regular price $62.99 USD

Regular price ~~$84.00 USD~~ Sale price $62.99 USD
Unit price per

Sale
GROCO Bronze Hose Barb Thru-Hull Fitting - 1-1/2" [HTH-1500]

Sale

GROCO Bronze Hose Barb Thru-Hull Fitting - 1-1/2" [HTH-1500]

Vendor:
GROCO

Regular price $54.99 USD

Regular price ~~$73.00 USD~~ Sale price $54.99 USD
Unit price per

Sale
Perko 1-1/2" Thru-Hull Fitting f/Hose Plastic MADE IN THE USA [0328DP8]

Sale

Perko 1-1/2" Thru-Hull Fitting f/Hose Plastic MADE IN THE USA [0328DP8]

Vendor:
Perko

Regular price $15.99 USD

Regular price ~~$21.76 USD~~ Sale price $15.99 USD
Unit price per

Sale
GROCO 1-1/2" Bronze Extra Long Thru-Hull Fitting w/Nut [THXL-1500-W]

Sale

GROCO 1-1/2" Bronze Extra Long Thru-Hull Fitting w/Nut [THXL-1500-W]

Vendor:
GROCO

Regular price $67.99 USD

Regular price ~~$90.00 USD~~ Sale price $67.99 USD
Unit price per

Sale
Perko 3/4" Thru-Hull Fitting w/Pipe Thread Bronze MADE IN THE USA [0322DP5PLB]

Sale

Perko 3/4" Thru-Hull Fitting w/Pipe Thread Bronze MADE IN THE USA [0322DP5PLB]

Vendor:
Perko

Regular price $33.99 USD

Regular price ~~$66.76 USD~~ Sale price $33.99 USD
Unit price per

Sale
Perko 1/2" Thru-Hull Fitting w/Pipe Thread Bronze MADE IN THE USA [0322DP4PLB]

Sale

Perko 1/2" Thru-Hull Fitting w/Pipe Thread Bronze MADE IN THE USA [0322DP4PLB]

Vendor:
Perko

Regular price $36.99 USD

Regular price ~~$51.96 USD~~ Sale price $36.99 USD
Unit price per

Sale
Perko Thru-Hull Scupper f/Mounting Through Transom [0323DP]

Sale

Perko Thru-Hull Scupper f/Mounting Through Transom [0323DP]

Vendor:
Perko

Regular price $42.99 USD

Regular price ~~$60.09 USD~~ Sale price $42.99 USD
Unit price per

Sale
GROCO 3/4" Stainless Steel Extra Long Thru-Hull Fitting w/Nut [THXL-750-WS]

Sale

GROCO 3/4" Stainless Steel Extra Long Thru-Hull Fitting w/Nut [THXL-750-WS]

Vendor:
GROCO

Regular price $43.99 USD

Regular price ~~$58.00 USD~~ Sale price $43.99 USD
Unit price per

Sale
Perko 3/4" Thru-Hull Fitting f/ Hose Bronze MADE IN THE USA [0350005DPP]

Sale

Perko 3/4" Thru-Hull Fitting f/ Hose Bronze MADE IN THE USA [0350005DPP]

Vendor:
Perko

Regular price $47.99 USD

Regular price ~~$67.77 USD~~ Sale price $47.99 USD
Unit price per

Sale
GROCO Stainless Steel Hose Barb Thru-Hull Fitting - 1-1/8" [HTH-1125-S]

Sale

GROCO Stainless Steel Hose Barb Thru-Hull Fitting - 1-1/8" [HTH-1125-S]

Vendor:
GROCO

Regular price $31.99 USD

Regular price ~~$42.00 USD~~ Sale price $31.99 USD
Unit price per

Sale
GROCO 1-1/4" Bronze Combo Scoop Thru-Hull w/Nut [STH-1250-W]

Sale

GROCO 1-1/4" Bronze Combo Scoop Thru-Hull w/Nut [STH-1250-W]

Vendor:
GROCO

Regular price $64.99 USD

Regular price ~~$86.00 USD~~ Sale price $64.99 USD
Unit price per

Sale
GROCO 1" Bronze Extra Long Thru-Hull Fitting w/Nut [THXL-1000-W]

Sale

GROCO 1" Bronze Extra Long Thru-Hull Fitting w/Nut [THXL-1000-W]

Vendor:
GROCO

Regular price $38.99 USD

Regular price ~~$52.00 USD~~ Sale price $38.99 USD
Unit price per

Sale
GROCO 3/4" Bronze Extra Long High Speed Thru-Hull Fitting w/Nut [HSTHXL-750-W]

Sale

GROCO 3/4" Bronze Extra Long High Speed Thru-Hull Fitting w/Nut [HSTHXL-750-W]

Vendor:
GROCO

Regular price $29.99 USD

Regular price ~~$40.00 USD~~ Sale price $29.99 USD
Unit price per

Sale
GROCO 1" Bronze Combo Scoop Thru-Hull w/Nut [STH-1000-W]

Sale

GROCO 1" Bronze Combo Scoop Thru-Hull w/Nut [STH-1000-W]

Vendor:
GROCO

Regular price $44.99 USD

Regular price ~~$60.00 USD~~ Sale price $44.99 USD
Unit price per

Sale
Perko 1" Thru-Hull Fitting f/ Hose Plastic MADE IN THE USA [0328DP6]

Sale

Perko 1" Thru-Hull Fitting f/ Hose Plastic MADE IN THE USA [0328DP6]

Vendor:
Perko

Regular price $4.99 USD

Regular price ~~$16.19 USD~~ Sale price $4.99 USD
Unit price per

Sale
Perko 3/4" Intake Strainer Bronze MADE IN THE USA [0065DP5PLB]

Sale

Perko 3/4" Intake Strainer Bronze MADE IN THE USA [0065DP5PLB]

Vendor:
Perko

Regular price $58.99 USD

Regular price ~~$109.63 USD~~ Sale price $58.99 USD
Unit price per

Sale
GROCO Stainless Steel Hose Barb Thru-Hull Fitting - 5/8" [HTH-625-S]

Sale

GROCO Stainless Steel Hose Barb Thru-Hull Fitting - 5/8" [HTH-625-S]

Vendor:
GROCO

Regular price $25.99 USD

Regular price ~~$34.00 USD~~ Sale price $25.99 USD
Unit price per

Sale
Perko 3/4" Thru-Hull Fitting f/Hose - Plastic Narrow Flange [0301DP5]

Sale

Perko 3/4" Thru-Hull Fitting f/Hose - Plastic Narrow Flange [0301DP5]

Vendor:
Perko

Regular price $6.99 USD

Regular price ~~$8.86 USD~~ Sale price $6.99 USD
Unit price per

Sale
Perko 3/4" Thru-Hull Fitting f/ Hose Plastic MADE IN THE USA [0328DP5]

Sale

Perko 3/4" Thru-Hull Fitting f/ Hose Plastic MADE IN THE USA [0328DP5]

Vendor:
Perko

Regular price $7.99 USD

Regular price ~~$8.06 USD~~ Sale price $7.99 USD
Unit price per

Sale
GROCO 2" Bronze Extra Long Thru-Hull Fitting w/Nut [THXL-2000-W]

Sale

GROCO 2" Bronze Extra Long Thru-Hull Fitting w/Nut [THXL-2000-W]

Vendor:
GROCO

Regular price $92.99 USD

Regular price ~~$124.00 USD~~ Sale price $92.99 USD
Unit price per

Sale

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